6 Meter Portable Dipole - N7JFP
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- Опубликовано: 30 сен 2024
- A list of parts needed is at 13:28 of video. This video shows how I made my 6 meter portable dipole using collapsible antennas and PVC. I used a MFJ269 to do SWR testing. To center the hex coupler nut and to keep the epoxy cement contained I used a rubber grommet around the coupler nut. A length of 51 to 52 inches per side will enable a usable SWR over the entire 6 meter band. Now if the band will just open up so I can try JT65 mode on it. 73, N7JFP
Nice antenna project!
73
wx5nco
Hi N7JFP !!
Congratulations , Excellent project, very good!!! 73 from Brazil.
Nice job on the antenna.. where can we buy those telescoping whips?
The 440 band is about 13 inches for a 1/2 wavelength. 6.5 inches per side.
Each side will collapse down to about 13 inches. It would work on 2m but not 70cm. 73, N7JFP
Hi Eric, the wire can be 16 or 18 gauge speaker wire. It is a tight fit to secure the screw. Have fun with the project. 73, N7JFP
You could show a performance this antenna with a radio on 6 meters. Good video. Congratulations from Brasil!
Good video 73 from baghdad de Yi1hxh
I used a rubber grommet I had left over from a copper tubing project. Find one that fits, trial and error method. It worked great. Good luck on building the antenna. 73, N7JFP
I knew there was a reason I saved all of that PVC from when I re-plumbed my house.
Check the end of the video at 13:28 for a list of parts. 73, N7JFP
Where did you get the elements for the dipole?
www.buddipole.com/stainsteelte.html, check 13:30 on video for parts list. Good luck, 73, N7JFP
Right now I have HF equipment. Someday I would like to have a VHF/UHF transceiver. A 2m/70cm dipole sounds like a another fun project. Thanks for watching. 73, N7JFP
Hi, do a Google search for Buddipole telescopic antenna. They are 12.00 each.
They work nice and come in black. 73, N7JFP
Would shortening the length of the antenna make it resonant for 70Mhz and VHF 144.300 SSB?
Yes. 144MHz is about 20 inches per side. The antenna will collapse down to 13 inches. Give it a try. 73, N7JFP
Love the video, will be making my own soon. I'm a OTR trucker and was looking for something portable. This would have been a lot of fun during those 3 day layovers in Nogales, AZ. I love that it can be switched between 2m & 6m with no mods other than adjusting the length of the extensions. Will definitely experiment with this antenna using a painter's pole to get it up in the air. For the guy asking about 2m operation, I'm sure it will work but you want to get this thing vertical for 2m FM. As for a matching network, wouldn't a hairpin match be sufficient?
Thank you for this video. I know it took some time to film, edit and publish. I am just getting into 6 meters.and this project is right up my alley.
All the best
73's
Dave Gill N6PGG / 7 Spokane valley WA.
Actually I feel stupid, I asked that question when I thought the viedo was over then you showed the bill of materials! Actually they are now 18.00 + S&H Thanks for the response!
Very informative the gentlemen doesn't get really excited about the project but some of us simply don't get too excited while we make things but I thought that this was real informative.
Thank you for making this video. It's exactly what I was looking for.
very nice antenna 73's from brasil
Walter Oliveira 😩
really love your antenna build videos. any chance you could do one for a duel band 2m/70cm dipole design?
Hello great video from what i saw, like the improvements to the design. I wasn't able to watch entire video, you may have answered this, but does the distance between the antenna elements make a difference? Is that why the guy you got the concept from used a smaller electrical box? Thanks! And 73's DE KK4MND
By adjusting the overall length to 1/2 wavelength and tapping into the middle, the length of the separation at 1/4 wavelength doesn't seem to effect the resonant frequency. The larger box was for easier access for connections. 73 N7JFP
Check the end of the video for the parts list. 73, N7JFP
Could those telescoping whips be adjusted for 2 meter operations?
Did you use anything to seal around the SO239 connector?
I made a 6 meter beam from an old CB beam. Works well!!
nice video and info thanks for Video and Time.
Nice video. Thanks. 73. PU2CLR.
Nice job, very well explained and crafted portable antenna. 73
I could never find the right grommet to hold the hex coupling. So in a pinch I wrapped it with black tape till it fit snugly. Then JB welded it. Seemed to work good.
Antenna turned out nice. Thanks for the video. Wondr if this could be tuned on 10m, also?
It's more expensive, but.... You could scale up this project and use those HUGE 17' telescoping whips (also 3/8" x 24 thread) that MFJ sells (MFJ-1979) for an overall maximum length of 34 feet.. Or forget about building the center box altogether and use the MFJ-347 "dipole maker". You can adjust the the whips to work from 6M down to 20M! Only issue is drooping of the telescopic whip elements. That can be remedied by extending the mast above the center mount and using 1/8" paracord to support the ends of the whips. All kinds of cool things you can do!
+Mark Pope You can do 10 meters by using those 102 inch stainless steel whip CB antenna's and just cutting them down a few inches for the 10 meter band. Will have to mount everything vertical or figure out a solution for drooping if horizontal. But those whips screw right into the hex coupler with no mods.
What length are the 3/8-24 Coupling Nuts?
The 3/8-24 coupling nut is 1 1/8 inch long. Good luck 73, N7JFP
Thanks for the prompt response!
What whip antennas did you use for this project?
+Brian Bowling Disregard. I see that you used Buddipole whip antennas in the BOM at the end of the video.
I am confused, what matching is there from the 50 Ohm coaxial cable to the dipole.
If there is no match the impedance will be strange much like the polar pattern.
Myles Nicholas The impedance of the dipole is about 72ohms. It is close enough match to the 50ohm transmitter output. An antenna matching unit should bring it in to 1:1. Thanks for watching. 73, N7JFP
N7JFP I suppose a quick and dirty coax choke would be better.
Great to-the-point video. Well done. Well explained. What did you use for the actual elements? thanks KX4IB
Check 13:30 on video for parts list.
www.buddipole.com/stainsteelte.html Good Luckk, 73, N7JFP
@@N7JFP Are your buddipole with/without knurled sleeves as advertised at buddipole? Also, no difference in buddipole antennas between the black and chrome?
Thank you. I really like this project.
What is the music ?
How did you center the coupling nuts for gluing into the 1/2 pvc?
I used rubber grommets. Fit the coupling nut into the grommets then fit into the PVC. 73,
N7JFP
@@N7JFP thank you.
Good job sir
vy nice indeed.
How much to have you make one for me?
Building this one was enough fun for me. Thanks for watching. 73, N7JFP
dude just buy a s0239 to 3/8 dipole splitter and 2 x 1.5 meter telescopic antenna whips and all is left is to get the threads down from 3/8 to what ever the whip threads are then done deal
What brand access panel is that?
Not sure. It was the only one at Home Depot. Any brand should work. Good luck, 73, N7JFP
It's Okay I found it thanks for responding and I really like your assembly method.
CarlonLamson & Sessons E983E-CTN 3/4" Non Metallic Conduit Body Type T
Unfortunately I can only buy them from US e bay and postage cost to Australia is ridiculous.
But thank you any way.
Is there a parts list available?
redundant explanation
Omg all u need to do is take a 54 inch piece of coax strip the braid from a center conducted works just as good or boy a budwing and sole to 54 inch on each side
Over constructed.